Study of left ventricular diastolic function of patients with acute myocardial infarction on different times after heart attack 组织型纤维蛋白溶解酶原激活剂静脉溶栓开始时间对急性心肌梗死左心室舒张功能的影响
Relationship between serum angiotension - converting enzyme activity and plasma plasminogen activator inhibitor activity in patients with myocardial infarction 心肌梗死患者血清血管紧张素转换酶与血浆纤溶酶原激活剂抑制物1的活性及其相关性
By the investigation for preparation technique of the phosphor , the optimum activator concentration , host composition and firing time were established 通过对荧光粉制备工艺的研究，确定了荧光粉制备中最佳的激活剂浓度、基质的组成及样品的灼烧时间等工艺参数。
Cdc25 undergoes serine / thre - onine phosphorylation at mitosis and enhances its phosphatase activity . mpf phosphorylates and actives cdc25 , which in turn dephosphorylates and further activates prempf Pkb分子量60kda ，目前已知分为pkb 、 、三种， pkb akt1广泛存在于机体各组织中，其活性受多种激活剂调节。
Activated agent of cerium that is abundant and cheap together with a little terbiumas additive is used in the study , to research and explore luminescent mechanism of aluminates strontium 本研究拟选用原料丰富、价格便宜的轻稀土元素铈作敏化剂，以铽作激活剂，对其在铝酸锶基体中的发光机理这一新领域进行研究和探讨。
Tissue - type plasminogn activator ( t - pa ) is a kind of high efficient and specific thrombolytic medicine and is used widely to cure blood vessel embolism diseases . at present , t - pa has been expressed in e . coli 组织型纤溶酶原激活剂( tissue - typeplasminogenactivator , t - pa )是一种高效特异的溶血栓药物，被广泛地应用于血管栓塞性疾病的治疗。
The abundant and cheap raw material terbium and cerium are selected as the activated dose in this study , their luminescence capability and principium in the strontium aluminate are studied , the afterglow of terbium in the strontium aluminate are discussed 我们选用原料丰富、价格相对便宜的铈、铽分别作为激活剂，分别研究它们在铝酸锶基质中的发光性和发光机理，并对铽在铝酸锶基质中的余辉机理进行了探讨。
In the process of the synthetic experiment with the pearlizer , the researchers focus their efforts on the exploration of the following areas concerning the artificial pearliser : ( 1 ) the material ratio ( 2 ) the amount of the catalyst used ( 3 ) the effect of such technological conditions as temperature and time on the performance of the final product , and ( 4 ) the ester value , acid value , yield rate , and appearance 在这次珠光剂的合成实验中，我们主要从以下凡个方面进行了探索研究工作: ( 1 ) (探索了珠光剂合成的)原料配比. ( 2 ) (探索了珠光剂合成的)激活剂用量. ( 3 ) (探索了珠光剂合成中的)温度、时间等合成工艺条件对产品性量的影响. ( 4 )探索了酯值，酸值、产率、外观等。
All the currently used thrombolytic agents are plasminogen activators , which are very efficient in restoring the blood flow . they can convert plasminogen into plasmin and thus degrade fibrin . despite the widespread use of established thrombolytic agents such as streptokinase , t - pa and u - pa , all these agents suffer from a number of inadequacies including resistance to reperfusion , occurrence of coronary reocclusion and bleeding complications 介绍了国内外溶栓剂蛋白质工程方面的新进展，主要涉及了组织型纤溶酶原激活剂t - pa尿激酶型纤溶酶原激活剂u - pa链激酶sk葡萄球菌激酶sak dspa及tsv - pa的研究进展。
It was found that plc activity was stimulated by both exogenous purified calmodulin and heterotrimeric g protein agonist cholera toxin . while , the stimulated effect on plc activity caused by exogenous calmodulin was inhibited by heterotrimeric g protein antagonist pertussis toxin , and plc antagonist u - 73122 inhibited the effect caused by cholera toxin . we also measure the free ca ~ ( 2 + ) level in germinating pollen grains , and found that exogenous purified calmodulin was able to increase the free ca ~ ( 2 + ) level , and their effects on ca ~ ( 2 + ) level were inhibited by u - 73122 实验中，利用[ ~ 3h ] pip _ 2和花粉原生质体共同孵育的体系，检测出了百合花粉细胞具有依赖pip _ 2的plc活性；利用该体系还检测出外源钙调素可促进plc的活性，其中10 ~ ( - 9 ) m的钙调素可使plc的活性提高三倍；异三聚体g蛋白的激活剂ctx可以激活plc的活性，而其抑制剂ptx可明显抑制plc活性；外源钙调素的这种作用可以被ptx抑制；而plc抑制剂u - 73122抑制ctx对plc的激活效应。
